"Not sure I buy the speed issue with the sub. My post doc work was in
binaural processing. Wavelengths at 100 Hz are long, and detection of
phase is generally a complex issue and I haven't followed the
psychoacoustic literature for decades. But I think I understand your
point about using speaker leads to subs, if you have to have subs."
Unfortunately, my post doc work wasn't done in binaural processing. I couldn't even go because I was busy making huge, expensive mistakes in audio.
As far as the speed and matching issue goes, you just have to try it. One of the more difficult things about this hobby is that we sometimes respond to different aspects of a system. Success usually comes to those who are willing to get their hands dirty. All that means is that you compliment the learned portion of audio with experimentation and experinace. Hopefull, you'll have something that sounds good in the end.
Also, I have to admitt that I haven't been myself these last couple of weeks. Its an issue that's not audio related. Not long ago, I had some free time and I happened to stumble across the flat earth movement. Personally, I find it to be the most disturbing thing I've seen in my entire life. And I don't scare easily. These flat earther's make an audiophile with a handfull of expensive cables appear sane. Sorry to go off topic.